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(optional) Delete the newest dependence before the error took place
Remove the lock file [ yarn.lock or package.lock] or both if by chance you do have them
yarn add --dev yarn-upgrade-all
yarn add pod-install
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# Go to ./node-module/react-native-fetch-blob/react-native-fetch-blob.podspec
# change:
s.dependency 'React/Core'
=> s.dependency 'React-Core'
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# Uncomment this line to define a global platform for your project
platform :ios, '11.0'